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Herbaceous Perennial

Clematis integrifolia (I)

solitary clematis

A deciduous, clump-forming, non-climbing woody subshrub to about 1-1.2m tall, with elliptical green leaves. Nodding, bell-shaped mid-blue flowers with slightly twisted outer sepals surrounding creamy-white anthers appear from midsummer to early autumn, followed by feathery, silvery seedheads. Ideal for scrambling through other plants in a border

Other common names
entire-leaved clematis
virgins-bower

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Blue Green
Autumn Blue Green Grey Silver
Winter
Position
  • Full sun
  • Partial shade
Aspect

West–facing or East–facing or South–facing

Exposure
Exposed or Sheltered
Hardiness
H6
Botanical details
Family
Ranunculaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Skin irritant. Wear gloves and other protective equipment when handling. Pets (rabbits): Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus

Clematis can be deciduous or evergreen shrubs or herbaceous perennials, mostly climbing by twining leaf-stalks, and often with showy flowers. Some have attractive fluffy seedheads in autumn

Name status

Correct

Horticultural Group
Integrifolia Group clematis are woody-based subshrubs with non-climbing or semi-climbing herbaceous stems, and bell-shaped or flat flowers on the current year's growth, in summer and early autumn
Plant range
C Europe to C Asia

How to grow

Cultivation

Plant in a moisture-retentive, well-drained soil, with the roots and base of the plant kept cool and shaded by other plants. Plant with the crown of the clematis level with the soil. Ideal for growing through plants in the herbaceous border or through low shrubs. See clematis cultivation for more advice

Propagation

Propagate by division or take basal softwood cuttings, in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Flower borders and beds
  • Underplanting of roses and shrubs
  • Cut flowers
Pruning

Clematis pruning: group three

Pests

May be susceptible to aphids, snails and caterpillars; petals may be eaten by earwigs

Diseases

May be susceptible to honey fungus (rarely), clematis wilt and clematis slime flux

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